Weef-2

Weefraampjes maken, gerelateerd aan de weefrozet. Nu voor kinderen in groep 3, ongeveer 6-7 jaar oud. Het is voor Diskoever, de handenarbeidklas van KOE, katholiek onderwijs Enschede.

Het moet eenvoudig te gebruiken zijn. Er lag een ontwerp wat al in grote lijnen goed werkte, maar voor het laseren kon er nog wat aan verbeterd worden zoals hoeken afronden. Dat snijdt echt veel sneller.

Hoe de ketting er op zetten? De bovenste kan losgemaakt worden. De onderste is veel eenvoudiger op te zetten. De leeftijd van de kinderen gaf de doorslag.

Nog wat handigheidjes eraan toegevoegd zoals een taps toelopend gleufje waarin het touw makkelijk vast gezet kan worden. Scheelt weer een knoopje. Restmateriaal kan worden gebruikt als een kam.

Test weefwerkje. Dat ging vlot, goedgekeurd en straks krijgen de kinderen meerdere kleuren om mee te gaan uitproberen

WEEF

Voor het WEEF project 2025 bordjes gelaserd. Hierin worden 7 draden gevlochten tot strengen. Een soort weven. Het is een project wat tijdens Enschede 700 wordt gebruikt op scholen in Enschede.

de oorspronkelijke rozet had wat te brede inkepingen, bedoeld voor een ander soort draad.

Het werkt. Er zijn er ruim 4000 nodig, zorg dus dat het echt goed werkt en dan aan de slag, productie draaien.

cutting the first batch. The final cutting could make better use of the material (by using hexagonal patterns instead it was possible to use about 10% more of the material)
the trash stacks high up, building interesting patterns
3400 ready, 1000 more to cut
Final Product

trailer tipper

Lumi will be at an exhibition at the Vrijhof but the door is not wide enough. So Lumi, or it’s trailer, had to be tipped on the side. How to do so? Well, safely and carefully. But how?

This is how you tip your trailer:

Build a supporting frame with wheels
Strip all set parts that are easily removed
Attach frames
Lift it with two cranes
Tilt it
And lower it on the wheels
Ready for the driving test
Test at uneven terrain

And after the test: a few adjustments to make:

1: Better attachment to the crane. The book now stands out a bit, the lifting chain has now more space and will not bene the sides of the steel profile. (you can still see the dent in the side)

2: Paint job. Looks better, and it is more comfortabele to handle, especially after a while when everything gets rusty. Not nice for your hands.

3: rubber plugs to protect your hands. One size (50×50) was not available for the thickness (3mm ) so i printed them . PLA was to brittle, TPA does the job fine.

TPU stop ready to push into the profile.

The same trick, now at the Vrijhof

Building the set (Lumi) again

Almost ready

To low for the complete roof. Well, the triangular shape already suggests a roof

ready

And a red cloth finishes the illusion. Is it a house? Is it a face?

Stadsherberg 2024

At the stadsherberg (city inn) just before Xmas 2024 I gave a workshop light boxes. Construct your own light box. Cardboard, lights, pencils, acrylic markers and of course glitter were provided. I only had to prepare it, for the participants it was obvious what to do: have fun together, share the stuff and i could “sit on my hands” (watch and enjoy), occasionally gently creating a working place for other participants.

Piz Roseg model

foto: google earth

3D printed model of the mountain on the border of Switzerland and Italy. Usually a cad program that uses heightfields (greyscale to elevation) is limited to 256 steps. That would result in stepped slopes, not nice to look at. I used Rhino 3D and grasshopper to import the original geotiff files with a higher resolution (16 bit = 65K levels). Much better, smooth slopes.

Janninks light

Janninks tower, part of an old industrial building in Enschede. A couple of years ago i made a lantern from it with the little candle LED’s. And now it is also working with 220V lamps. It took a while to rebuild it, the thin paper design has evolved into two lamps: a thick cardboard design with a pucklight on batteries and a 160 gr paper design with 220V lamps. I’m particularly happy with the shade inside that guides the light very well.

Safety is always a concern with 220V applications. I use LED lamps (E14 fitting) that do not turn hot. But you never know. So I experimented with flame proving the paper and found a good solution that makes the paper flame retardant, this works well. For the children I also made a variation that uses a battery lamp. Much effort was spent to make it easy to build. It is safe and the lamp can be constructed without folding or gluing.

Welding a trailer tipper

I’m building a frame to turn the trailer on it’s site and move it through a narrow corridor. It is for an exhibition in the Vrijhof at the Twente University.

it’s constructed with the original edge posts of the trailer and it will slide in position. A “key” will lock it in place. It is a crazy idea, flipping the trailer. Why don’t people just walk out to have a look at it.

Here is the site of Lumi.